To understand the perti nence to America of events in Greece, no tice General Motors’ most recent misbehavior. A TV commercial featuring CEO Ed Whitacre demonstrates the institutional murkiness and intellectual dishonesty that result when the line between public and private sectors disappears.

In the ad, Whitacre says GM has “repaid our government loan in full.” Rep. Paul Ryan (R-Wisc.) noted that GM used government funds to pay back the government: It “simply transferred $6.7 billion from one taxpayer-funded TARP account to another.” The government still owns 60.8 percent of GM’s common equity, and the Congressional Budget Office projects that the government will lose about $34 billion of the $82 billion of TARP funds dispersed to the automotive industry.

When Ryan and two colleagues asked the Treasury Department for clarification, they got this careful reply: “Treasury has never suggested that the loan repayment represented a full return of all government assistance.” A Treasury press release did say “GM Repays Treasury Loan in Full.” The loan is, however, a small part of taxpayer exposure.

Under crony capitalism, when government and corporate America merge, both dissemble.

Now American taxpayers also own a little bit of a small nation. They provide the US contribution of 17 percent of the assets of the International Monetary Fund, which is giving Greece $39 billion (the IMF also is contributing $321 billion to a “stabilization” fund for other eurozone nations with debt problems).

So the US government, which would borrow 42 cents of every dollar it spends under the president’s 2011 budget, is borrowing to rescue Greece and others from the consequences of their borrowing.

That nation, whose GDP is below that of the Dallas-Fort Worth metropolitan area, is “too big to fail,” meaning too inconveniently connected to too many big banks. Bailing out Greece really rescues European banks that improvidently bought Greek bonds.

Visit tinyurl.com/2dzaul2 for a useful New York Times graphic illustrating how European nations borrow from one another. For example, Italy owes France (French banks) $511 billion, a sum nearly equal to 20 percent of France’s GDP. About one-third of Portugal’s debt is held by Spain, which has $238 billion of its debt held by Germany and $220 billion by France.

Russell Roberts of George Mason University notes that this “discourages prudence and wariness” because when “everyone has financed everyone else, you can justify bail- ing everyone out.”

At the Parthenon last week, the Greek Communist Party, which got 8 percent of the vote in the last national election, draped banners emblazoned with the hammer and sickle: “Peoples of Europe Rise Up.” Of course. “Arise ye prisoners of starvation” exhorts “The Internationale,” the left’s ancient anthem. But who is to arise against whom?

Time was, the European left said it spoke for horny-handed sons of toil oppressed in dark Satanic mills. But Athens’ so-called “anti-government mobs” have been composed mostly of government employees going berserk about threats to their entitlements. Even Greek air-force pilots went on strike.

The government, unable to say how many employees it has, promises to count them. It cannot fire many of them because article 103, paragraph 4 of the Greek Constitution says: “Civil servants holding posts provided by law shall be permanent so long as these posts exist.”

America’s projected $9.7 trillion in budget deficits in this decade will drive the nation’s debt to 90 percent of GDP (Greece’s is 124 percent). So some people say that to avoid a Greek-style crisis, America should adopt a value-added tax. But Europe’s most troubled nations — the PIIGS: Portugal, Ireland, Italy, Greece and Spain — have VATs of 20 percent, 21 percent, 20 percent, 21 percent and 16 percent, respectively. As part of its austerity penance, the Greek government is going to give itself more money by raising its VAT to 23 percent.

Germans are furious about being the biggest bailers in this bailout of a nation where tax evasion is pandemic. They have not been assuaged by being told by their chancellor, Angela Merkel, that the stakes are stupendous: Their money will save “Europe.” Hearing that, Greeks bearing banners proclaiming “Out with the IMF” might think:

Why accept “austerity” (as understood in Greece — no more annual bonuses of two months’ salary, no more retirement at 53)? Suppose, after pocketing some of the bailout, we just threaten to collapse and make a mess of “Europe”?

Greece now knows the terrific strength of weakness. Beware of Greeks — or any other people — receiving gifts.